Organ pipe assembly



Dec. 26, 1950 c. w. MMANIS ORGAN PIPE ASSEMBLY Filed Dec. 8, 1947Patented Dec. 26, 1950 UNITED STATES PATENT OFFICE ORGAN PIPE ASSEMBLY"Charles -W. Mcllianis, Kansas city, :Kans. Application Decembcr'S,1947,Serial No. 790,332

16 Claims. 1

This invention relates to new and useful improvements in an organ pipeassembly, and has as its principal object the provision of a simpler,more easily manufactured pipe providing greater ease and speed of tonalregulation than is possible in the ordinary organ pipe.

In traditional pipe organ construction, each pipe consists principallyof three parts, a conical tubular foot adapted to receive air at itssmaller end from a windchest, a tubular pipe or resonator secured to thelarger end of the foot and having a mouth formed therein at saidjuncture, and a partition known as a languid separating the foot fromthe resonator and having a slit formed therethrough adapted to direct asheet of air against the upper lip of said mouth to produce a tone.

An object of this invention is the provision of an organ pipe assemblywherein the resonators are structurally divorced from the foot andlanguid equivalents, said resonators being secured adjustably to aspecially constructed chestblock which performs the foot functions foran entire bank of pipes.

Another object is the provision of an organ pipe assembly comprising achestblock carried'on the windchest of an organ and adapted to support aplurality of resonators or pipes re'leasably and adjustably securedthereto, and individual air passages formed through said chestblock foreach of said resonators adapted to direct air from said windchest to"said resonator, and a languid secured to said chestblock within each ofsaid resonators and adapted to form in conjunction with said passage anair slit adapted to direct a sheet of air against the lip of saidresonator.

Other objects are simplicity and economy of construction, flexibility ofadjustment and adaptability to utilize commercial tubing, which isavailable in all the necessary graduations of size, without the use ofconical tubes, and without welding or soldering.

With these object in view, as well as other objects which will appear inthe course of the specification, reference will be had to the drawing,wherein:

Figure 1 is a fragmentary front elevation of .a bank of organ pipes,showing a pipe assembly embodying the present invention.

Fig, 2 is an enlarged fragmentary vertical section taken'on lineII-II ofFig. 1.

Fig. :3 is a fragmentary horizontal section taken on line III-III ofFig. 2.

Like reference numerals apply to similar parts throughout the severalviews, and the numeral 4' applies to a fragmentary showing of :anorgan 2windchest :having a topboard 6. Air is delivered under pressure to said'chest .by blower means not shown. An aperture 8 is formed through thetop-board for each organ pipe, the apertures for each bank of pipesbeing disposed in a line extending transversely .across the windchest.

A chestblock is preferably having the form of an elongated plank of woodor other suitable material, is secured to topboard 6 by'any suitablemeans such as screws HE. A recess I4 is formed .in the lower surface ofchestblock II directly above each aperture 8, said recess being disposedadjacent the rearward edge of the chestblock. Each recess 14 isinterconnected by a forwardly extending passage is with a recess isformed in the forward edge of the chestblock, said last named recessopening .at both .the forward and upper surfaces of thechestblock. Aslit 20 .is formed between the upper edge of a cap plate 22 fixed to theforward surface or" the chestblock and extending across re- 'cess H5,and the forward edge of a planar languid 24 fixed to the upper surfaceof the chestblock, said slit being adapted to direct a sheet of airupwardly from the chestblock.

A tubular pipe 26 commonly known as a resonator, is supported onchestblock I0 above each slit 2%). At its lower end each resonator has aflattened portion 28 at its forward side said flattened portion slopinginwardly as shown in Fig. 2. Said flattened portion is slit horizontallyat a point above the lower end of the pipe, and the resultant strip ofmetal is cut vertically 'at its midpoint, the end portions of said stripthen being bent outwardly to form ears St. The space =vacated by saidears forms the pipe mouth 32. The upper lip 311 of said mouth may bebevelled to a sharp edge as shown in Fig. 2.

The sheet of air passing upwardly from slit 2G crosses mouth 32 andbreaks across lip 3d thereof, thus setting up .a vibration in the aircolumn carried in resonator pipe v25 to produce a tone. Ears i serve toconfine the sheet of air as it crosses mouth 32. If larger earsextendingabove and below mouth 32 are desired, ears may be used as anchorages forsaid larger ears. Tonal quality of the pipe is affected by theconformation and relative positioning of cap 2.2 and languid 24; 'Sincethese members are releasably secured to the chestblock byscrews or insome other manner readily lending itself to adjustment, voicin of thepipe may be .ac- .complished .much more easily and faster than inordinary pipes requiring soldering or Welding-of the-parts.

Each pipe is provided :at its lower end with transversely extendingflanges 36 as best shown in Fig. 3, said flanges adapted to beclampingly secured to chestblock l by large headed screws 38, the headof each of said screws being adapted to engage clampingly the adjacentflanges 36 of consecutive pipes 25. The lower end of each pipe is dippedin a liquid plastic which dries to a spongy consistency to form aplastic gasket 40 providing an air-tight seal between the pipe and thechestblock. With screws 38 loosened, pipe 26 may be slid forwardly orrearwardly to position lip 34 properly with respect to the sheet of airfrom slit 20. When the proper adjustment has been obtained, positioninpins 42 may be fixed in chestblock ID to project through holes providedtherefor in flanges 36. Thereafter the pipe may be removed simply byloosening screws 38 and lifting flanges 36 from pins 42, and may bereplaced accurately in position by fitting said flanges over said pins.

A volume control valve 44 is carried on a vertical screw 45 threadedthrough the top of chestblock ill to the rear of each pipe, said valvebeing adapted to cover and regulate the amount of air passing throughaperture 8. An operating valve 48 is carried within windchest d inconjunction with each aperture 8. and is adapted to open or close saidaperture. toward its closed position against the lower surface ofwindchest topboard 6 by a spring 553, and is opened by the windchestpressure exerted downwardly on diaphragm 52 whenever the pressurebeneath said diaphragm is exhausted. The faces of valves A l and 48 maybe provided with felt covering 54 having leather facings 56 to insurequiet, eflicient closure. Valves 48 are operable from the keyboardconsole of the organ by means not shown.

Thus it is apparent that a simple, economical organ pipe assembly hasbeen produced which may be easily and rapidly adjusted, which requiresno relatively expensive foot portion, which requires no soldering orwelding, and which may be simply manufactured from commerciallyavailable tubing.

What I claim as new and desire to protect by Letters Patent is:

1. An organ p pe assembly comprising a chestblock mounted on thewindchest of an organ and having a plurality of individual air passagesformed therethrough, said air passages each communicating at one endwith said windchest and formed at its opposite end to present a slitadapted to direct a sheet of air outwardly, and a tubular resonatorcarried by said chestblock above each of said slits, each of saidresonators having an open mouth adjacent said slit and a lip adjacentsaid mouth over which said sheet of air breaks to produce a tone.

2. An organ pipe assembly comprising a chestblock mounted on thewindchest of an organ and having a plurality of individual air passagesformed therethrough, said air passages each communicating at one endwith said windchest, members adjustably secured to the outer surface ofsaid chestblock to partially close the open opposite end of each of saidair passages to form a slit adapted to direct a sheet of air upwardly,and a tubular resonator carried by said chestblock above each of saidslits, each of said resonators having an open mouth adjacent said slitand a lip adjacent said mouth upon which said sheet of air impinges toproduce a tone.

3. An organ pipe assembly comprisinga chest- Said valve is normallyurged block fixed to the windchest of an organ and 5 having a pluralityof individual air passages formed therethrough, each of said airpassages communicating at one end with said windchest, and opening atits opposite end at the forward and upper surfaces of said chestblock, acap secured to the forward surface of said chestblock to cover theforward opening of said air passage, a languid secured to the uppersurface of said chestblock, the forward edge of said languid beingspaced apart from the upper edge of said cap to form a slit fordirecting a sheet of air upwardly, and a tubular resonator carried bysaid chestblock above each of said slits, each of said resonators havingan open mouth adjacent said slit and a lip adjacent said mouth uponwhich said sheet of air impinges to produce a tone.

4. An organ pipe assembly comprising a chestblock mounted on thewindchest of an organ and having a plurality of individual air passagesformed therethrough, said air passages each communicating at one endwith said windchest and forming at its opposite end a discharge slit fordirecting a sheet of air outwardly, a tubular resonator mounted on saidchestblock above each of said slits, each of said resonators having anopen mouth adjacent said slit and a lip adjacent said mouth and parallelto said slit, upon which said sheet of air impinges to produce a tone,and means for adjustably moving said resonator transversely to said slitto secure proper cutting of said sheet of air across said lip.

5. An organ pipe assembly comprising a chestblock supported on thewindchest of an organ and having a plurality of individual air passagesformed therethrough, said air passages each communicating at one endwith said windchest and forming at its opposite end a discharge slit fordirecting a sheet of air outwardly, a tubular resonator mounted on saidchestblock above each of said slits, each of said resonators havin anopen mouth adjacent said slit and a lip adjacent said mouth and parallelto said slit, upon which said sheet of air impinges to produce a tone,flanges turned outwardly from the lower edge of said resonator on adiameter parallel to the plane of said mouth, and screws secured in saidchestblock adjacent said flanges, the heads of said screws releasablysecuring said flanges to said chestblock, thereby permitting theadjustment of said resonator transversely to said slit to secure propercutting of said sheet of air across said lip.

6. An organ pipe assembly comprising a chestblock mounted on thewindchest of an organ and having an air passage formed therethroughcommunicating at one end with said windchest and forming at its oppositeend a discharge slit for directing a sheet of air outwardly, and atubular resonator adjustably mounted on said chestblock, said resonatorhaving a mouth adjacent said slit, across which mouth said sheet of airpasses to iimpinge on the upper lip thereof to produce a one.

CHARLES W. McMANIS.

REFERENCES CITED The following references are of record in the file ofthis patent:

2,005,867 Maag June 25, 1935

